Vehicle controller and vehicle control method

A vehicle controller that automatically controls a traveling speed of a vehicle based on a request value provided by a driver assistance device, wherein

• the vehicle controller comprises a correction unit,
• when the vehicle is traveling on an uphill road, the correction unit executes a first correction process on the request value, the first correction process being a process that corrects the request value such that the traveling speed is higher than that in a case in which the first correction process is not executed,
• when the vehicle is traveling on a downhill road, the correction unit executes a second correction process on the request value, the second correction process being a process that corrects the request value such that the traveling speed is lower than that in a case in which the second correction process is not executed,
• if hard braking of the vehicle is requested by the driver assistance device when the vehicle is traveling on the uphill road and the first correction process is being executed, the correction unit sets a correction amount of the request value in the first correction process to a lower value than that in a case in which hard braking of the vehicle is not requested, thereby increasing a force that decelerates the vehicle, and
• if hard braking of the vehicle is requested by the driver assistance device when the vehicle is traveling on the downhill road and the second correction process is being executed, the correction unit refrains from making a correction amount of the request value in the second correction process lower than that in a case in which hard braking of the vehicle is not requested.